Well i'm preparing my car for the big day which is tomorrow when i put my lt's in. I took off the y-pipe and loosened all the driver side manifold bolts spayed all the passenger side ones really good and loosened a couple had to move my car out of the shop about 50 ft and man it was loud also had the o2's out and the egr stuff out and it had no torque at all i kinda stabbed the gas and i just laughed it was running like crap. Hope its not that way when i put my lt's in. Is this normal when running like that?

 

yes. no o2 = running like crap, plus no back pressure what so ever, that's more crap

 

The weird thing is i had no ses light i figured id had one maybe not enough time for pcm to realize it or something i dunno

 

I agree with TMDZ28. No backpressure (LT1s need a decent amount of backpressure) and no O2s make for a sh!tty running car.

As for the LTs...you'll love it. Be sure to take it for a spin with open LTs. I got so many looks and set so many car alarms off when I drove down the street and I was damn near idle trying to keep the noise down lol. As long as you have the O2s plugged into the LTs, the car runs perfect.

 

Yes the o2s not hooked up will make the car run bad.

But i gotta chuckle at the no backpressure remarks lol

 

me too. my car seemed to like LTs and straight through true duals and that combo doesnt leave much backpressure

 

Ummmm open LTs = NASCAR sound unfortunetly I drive at night and didnt wanna wake up Illinois and the less exhaust hooked up the lopier your cam